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In this paper, we introduce a new task: Zero-Shot 3D Reasoning Segmentation for parts searching and localization for objects, which is a new paradigm to 3D segmentation that transcends limitations for previous category-specific 3D semantic…

Computer Vision and Pattern Recognition · Computer Science 2024-05-30 Tianrun Chen , Chunan Yu , Jing Li , Jianqi Zhang , Lanyun Zhu , Deyi Ji , Yong Zhang , Ying Zang , Zejian Li , Lingyun Sun

Open-vocabulary 3D semantic segmentation aims to segment arbitrary categories beyond the training set. Existing methods predominantly rely on distilling knowledge from 2D open-vocabulary models. However, aligning 3D features to the 2D…

Computer Vision and Pattern Recognition · Computer Science 2026-03-30 Xujing Tao , Chuxin Wang , Yubo Ai , Zhixin Cheng , Zhuoyuan Li , Liangsheng Liu , Yujia Chen , Xinjun Li , Qiao Li , Wenfei Yang , Tianzhu Zhang

As the most fundamental scene understanding tasks, object detection and segmentation have made tremendous progress in deep learning era. Due to the expensive manual labeling cost, the annotated categories in existing datasets are often…

Computer Vision and Pattern Recognition · Computer Science 2024-04-16 Chaoyang Zhu , Long Chen

Open-vocabulary 3D object detection aims to localize and recognize objects beyond a fixed training taxonomy. In multi-view RGB settings, recent approaches often decouple geometry-based instance construction from semantic labeling,…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Youbin Kim , Jinho Park , Hogun Park , Eunbyung Park

3D scene understanding is fundamental for embodied AI and robotics, supporting reliable perception for interaction and navigation. Recent approaches achieve zero-shot, open-vocabulary 3D semantic mapping by assigning embedding vectors to 2D…

Computer Vision and Pattern Recognition · Computer Science 2025-12-09 Mohamad Amin Mirzaei , Pantea Amoie , Ali Ekhterachian , Matin Mirzababaei , Babak Khalaj

Open-vocabulary 3D scene understanding (OV-3D) aims to localize and classify novel objects beyond the closed set of object classes. However, existing approaches and benchmarks primarily focus on the open vocabulary problem within the…

Computer Vision and Pattern Recognition · Computer Science 2025-11-26 Youjun Zhao , Jiaying Lin , Shuquan Ye , Qianshi Pang , Rynson W. H. Lau

Locating and retrieving objects from scene-level point clouds is a challenging problem with broad applications in robotics and augmented reality. This task is commonly formulated as open-vocabulary 3D instance segmentation. Although recent…

Computer Vision and Pattern Recognition · Computer Science 2025-12-23 Khanh Nguyen , Dasith de Silva Edirimuni , Ghulam Mubashar Hassan , Ajmal Mian

Recently, Vision-Language Models (VLMs) have advanced segmentation techniques by shifting from the traditional segmentation of a closed-set of predefined object classes to open-vocabulary segmentation (OVS), allowing users to segment novel…

Computer Vision and Pattern Recognition · Computer Science 2024-10-31 Gonca Yilmaz , Songyou Peng , Marc Pollefeys , Francis Engelmann , Hermann Blum

Open-vocabulary segmentation (OVS) extends the zero-shot recognition capabilities of vision-language models (VLMs) to pixel-level prediction, enabling segmentation of arbitrary categories specified by text prompts. Despite recent progress,…

Computer Vision and Pattern Recognition · Computer Science 2026-02-27 Tilemachos Aravanis , Vladan Stojnić , Bill Psomas , Nikos Komodakis , Giorgos Tolias

We introduce Referring 3D Gaussian Splatting Segmentation (R3DGS), a new task that aims to segment target objects in a 3D Gaussian scene based on natural language descriptions, which often contain spatial relationships or object attributes.…

Computer Vision and Pattern Recognition · Computer Science 2025-08-12 Shuting He , Guangquan Jie , Changshuo Wang , Yun Zhou , Shuming Hu , Guanbin Li , Henghui Ding

We present OpenSeeD, a simple Open-vocabulary Segmentation and Detection framework that jointly learns from different segmentation and detection datasets. To bridge the gap of vocabulary and annotation granularity, we first introduce a…

Computer Vision and Pattern Recognition · Computer Science 2023-03-21 Hao Zhang , Feng Li , Xueyan Zou , Shilong Liu , Chunyuan Li , Jianfeng Gao , Jianwei Yang , Lei Zhang

Existing methodologies in open vocabulary 3D semantic segmentation primarily concentrate on establishing a unified feature space encompassing 3D, 2D, and textual modalities. Nevertheless, traditional techniques such as global feature…

Computer Vision and Pattern Recognition · Computer Science 2024-11-21 Ziyi Wang , Yanbo Wang , Xumin Yu , Jie Zhou , Jiwen Lu

Recent advances in leveraging large-scale Internet photo collections for 3D reconstruction have enabled immersive virtual exploration of landmarks and historic sites worldwide. However, little attention has been given to the immersive…

Graphics · Computer Science 2025-08-06 Yuze Wang , Yue Qi

In this paper, we consider the problem of open-vocabulary semantic segmentation (OVS), which aims to segment objects of arbitrary classes instead of pre-defined, closed-set categories. The main contributions are as follows: First, we…

Computer Vision and Pattern Recognition · Computer Science 2023-03-06 Jilan Xu , Junlin Hou , Yuejie Zhang , Rui Feng , Yi Wang , Yu Qiao , Weidi Xie

Open-Vocab 3D Instance Segmentation methods (OV-3DIS) have recently demonstrated their ability to generalize to unseen objects. However, these methods still depend on predefined class names during testing, restricting the autonomy of…

Computer Vision and Pattern Recognition · Computer Science 2025-08-13 Phuc D. A. Nguyen , Minh Luu , Anh Tran , Cuong Pham , Khoi Nguyen

Open-vocabulary image segmentation is attracting increasing attention due to its critical applications in the real world. Traditional closed-vocabulary segmentation methods are not able to characterize novel objects, whereas several recent…

Computer Vision and Pattern Recognition · Computer Science 2023-07-18 Xi Chen , Shuang Li , Ser-Nam Lim , Antonio Torralba , Hengshuang Zhao

Recently, 3D Gaussian Splatting (3DGS) has achieved impressive performance on indoor surface reconstruction and 3D open-vocabulary segmentation. This paper presents GLS, a unified framework of 3D surface reconstruction and open-vocabulary…

Computer Vision and Pattern Recognition · Computer Science 2025-07-01 Jiaxiong Qiu , Liu Liu , Xinjie Wang , Tianwei Lin , Wei Sui , Zhizhong Su

The open vocabulary capability of 3D models is increasingly valued, as traditional methods with models trained with fixed categories fail to recognize unseen objects in complex dynamic 3D scenes. In this paper, we propose a simple yet…

Computer Vision and Pattern Recognition · Computer Science 2025-03-12 Zhuoyuan Li , Jiahao Lu , Jiacheng Deng , Hanzhi Chang , Lifan Wu , Yanzhe Liang , Tianzhu Zhang

Constructing a 3D scene capable of accommodating open-ended language queries, is a pivotal pursuit, particularly within the domain of robotics. Such technology facilitates robots in executing object manipulations based on human language…

Open-vocabulary 3D panoptic segmentation has recently emerged as a significant trend. Top-performing methods currently integrate 2D segmentation with geometry-aware 3D primitives. However, the advantage would be lost without high-fidelity…

Computer Vision and Pattern Recognition · Computer Science 2025-05-02 Feng Xue , Wenzhuang Xu , Guofeng Zhong , Anlong Minga , Nicu Sebe